THE RIGHT UNIT. THE CLEAR ANSWER.

Kilowatt-hour converter.

Convert work, heat, and electrical energy. Calories use the thermochemical convention; BTU uses the international table.

Energy converter

Precision

From

kWh

3,600,000J

THE RESULT

1 kWh = 3,600,000 J

Calculated in your browserFormula & conversion table

ONE VALUE, EVERY UNIT

Kilowatt-hour equivalents

Value

Convert to	Result	Calculator
Joule (J)	3,600,000 J
Kilojoule (kJ)	3,600 kJ
Megajoule (MJ)	3.6 MJ
Calorie (thermochemical) (cal)	860,420.6501 cal
Kilocalorie (kcal)	860.4206501 kcal
Watt-hour (Wh)	1,000 Wh
BTU (IT) (BTU)	3,412.141633 BTU
Electronvolt (eV)	2.246943267e25 eV

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Convert kilowatt-hour to…

JJoule kJKilojoule MJMegajoule calCalorie (thermochemical)kcalKilocalorie WhWatt-hour BTUBTU (IT)eVElectronvolt

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The conversions you reach for.

kWh→JKilowatt-hour to Joule kWh→kJKilowatt-hour to Kilojoule kWh→MJKilowatt-hour to Megajoule kWh→calKilowatt-hour to Calorie (thermochemical)kWh→kcalKilowatt-hour to Kilocalorie kWh→WhKilowatt-hour to Watt-hour kWh→BTUKilowatt-hour to BTU (IT)kWh→eVKilowatt-hour to Electronvolt

About energy conversions

Convert work, heat, and electrical energy. Calories use the thermochemical convention; BTU uses the international table.

Each unit is defined relative to one common base unit, so the same factors work consistently in both directions. Select any unit above to see its conversion formula, a worked example, and a reference table.

How precision and conventions work